Screen sleeps at windows login

Discussion in 'MacBook Pro' started by andrewb10, Aug 13, 2012.

  1. andrewb10 macrumors newbie

    Aug 13, 2012
    I have the new MBP with retina display and everything works (for the most part) when booting into OSX. But I have it boot camped with Windows 7, which I've been a user of my whole life, and as soon as it gets to the login screen the screen shuts off. This has never happened to me with any PC I've ever owned, so it has to be a mac issue. In the past i've managed to click some buttons and it would at least flash the login screen every so often, so I know it's not shutting down. But now it just stays black. If I hold the power button down until it shuts off I can reboot. I was able to successfully boot into both windows and mac for about a month before this started happening.

    Oh and I am able to boot into windows safe mode.

    Any idea on how to fix this?
  2. zainiak, Aug 13, 2012
    Last edited: Aug 13, 2012

    zainiak macrumors regular

    Aug 1, 2012
    mine used to do this. But it stopped on the third or fourth day i had it. weird...but it happens in osx
  3. andrewb10 thread starter macrumors newbie

    Aug 13, 2012
    more info

    Some more information:

    -When I close and open the laptop at the login screen the screen lights up for a second (still black), then goes dark again.

    -When connected to a second monitor through the HDMI port it displayed on the second monitor. I was able to log in and use it like normal. I messed with the multiple monitor settings in windows 7 but the laptop screen remained completely unresponsive.

    -When closing and opening the laptop while connected to the second monitor it behaved normally (but the laptop screen never turned on beside the 1 second light-up I mentioned above.

    -Uninstalling the graphics adapter in windows 7 and rebooting allows me to log into windows, but after windows reinstalls the driver and I reboot the issue remains.

    -Uninstalling it again caused windows to reinstall the standard VGA adapter (not the Geforce 650M that was installed before) and this also allows me to log in, but isn't acceptable to me. It also sets the resolution to 800x600 every time it reboots.

    -After doing a system restore to before any problems began, it restored the nvidia driver and the same issue persists.

    My conclusion:

    The graphics adapter is somehow responsible for shutting the screen off as soon as windows finishes loading. But the computer isn't sleeping as I thought before, the screen is simply shut off as proven by the second monitor which allowed me to use the keyboard and everything normally.

    Seeing as how the graphics adapter seems to be the issue, I went to nvidia's website and downloaded the latest beta driver that supports the GeForce 650M, but when running the installer it claims that it can't find the hardware that is required for the driver.

    So currently I am still unable to use the laptop screen when booting into windows unless I connected to an external monitor, boot into safe mode, or uninstall the current graphics adapter and use the standard VGA one.

    I don't know what to do next..
  4. andrewb10 thread starter macrumors newbie

    Aug 13, 2012
    Anyone? I feel like it's an issue with the new hdmi output on the rMBP seeing as how the display is being redirected to that. Is anyone else running win7 without issues on the rMBP?

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